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complex.cpp
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199 lines (182 loc) · 10.3 KB
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/*******************************************************
* Copyright (c) 2014, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* http://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#include <gtest/gtest.h>
#include <testHelpers.hpp>
#include <af/arith.h>
#include <af/array.h>
#include <af/data.h>
#include <af/device.h>
#include <af/random.h>
using std::endl;
using namespace af;
const int num = 10;
#define CPLX(TYPE) af_c##TYPE
#define COMPLEX_TESTS(Ta, Tb, Tc) \
TEST(ComplexTests, Test_##Ta##_##Tb) { \
SUPPORTED_TYPE_CHECK(Ta); \
SUPPORTED_TYPE_CHECK(Tb); \
SUPPORTED_TYPE_CHECK(Tc); \
\
af_dtype ta = (af_dtype)dtype_traits<Ta>::af_type; \
af_dtype tb = (af_dtype)dtype_traits<Tb>::af_type; \
array a = randu(num, ta); \
array b = randu(num, tb); \
array c = complex(a, b); \
Ta *h_a = a.host<Ta>(); \
Tb *h_b = b.host<Tb>(); \
CPLX(Tc) *h_c = c.host<CPLX(Tc)>(); \
for (int i = 0; i < num; i++) \
ASSERT_EQ(h_c[i], CPLX(Tc)(h_a[i], h_b[i])) \
<< "for values: " << h_a[i] << "," << h_b[i] << endl; \
freeHost(h_a); \
freeHost(h_b); \
freeHost(h_c); \
} \
TEST(ComplexTests, Test_cplx_##Ta##_##Tb##_left) { \
SUPPORTED_TYPE_CHECK(Ta); \
SUPPORTED_TYPE_CHECK(Tb); \
\
af_dtype ta = (af_dtype)dtype_traits<Ta>::af_type; \
array a = randu(num, ta); \
Tb h_b = 0.3; \
array c = complex(a, h_b); \
Ta *h_a = a.host<Ta>(); \
CPLX(Ta) *h_c = c.host<CPLX(Ta)>(); \
for (int i = 0; i < num; i++) \
ASSERT_EQ(h_c[i], CPLX(Ta)(h_a[i], h_b)) \
<< "for values: " << h_a[i] << "," << h_b << endl; \
freeHost(h_a); \
freeHost(h_c); \
} \
\
TEST(ComplexTests, Test_cplx_##Ta##_##Tb##_right) { \
SUPPORTED_TYPE_CHECK(Ta); \
SUPPORTED_TYPE_CHECK(Tb); \
\
af_dtype tb = (af_dtype)dtype_traits<Tb>::af_type; \
Ta h_a = 0.3; \
array b = randu(num, tb); \
array c = complex(h_a, b); \
Tb *h_b = b.host<Tb>(); \
CPLX(Tb) *h_c = c.host<CPLX(Tb)>(); \
for (int i = 0; i < num; i++) \
ASSERT_EQ(h_c[i], CPLX(Tb)(h_a, h_b[i])) \
<< "for values: " << h_a << "," << h_b[i] << endl; \
freeHost(h_b); \
freeHost(h_c); \
} \
TEST(ComplexTests, Test_##Ta##_##Tb##_Real) { \
SUPPORTED_TYPE_CHECK(Ta); \
SUPPORTED_TYPE_CHECK(Tb); \
SUPPORTED_TYPE_CHECK(Tc); \
\
af_dtype ta = (af_dtype)dtype_traits<Ta>::af_type; \
af_dtype tb = (af_dtype)dtype_traits<Tb>::af_type; \
array a = randu(num, ta); \
array b = randu(num, tb); \
array c = complex(a, b); \
array d = real(c); \
Ta *h_a = a.host<Ta>(); \
Tc *h_d = d.host<Tc>(); \
for (int i = 0; i < num; i++) \
ASSERT_EQ(h_d[i], h_a[i]) << "at: " << i << endl; \
freeHost(h_a); \
freeHost(h_d); \
} \
TEST(ComplexTests, Test_##Ta##_##Tb##_Imag) { \
SUPPORTED_TYPE_CHECK(Ta); \
SUPPORTED_TYPE_CHECK(Tb); \
SUPPORTED_TYPE_CHECK(Tc); \
\
af_dtype ta = (af_dtype)dtype_traits<Ta>::af_type; \
af_dtype tb = (af_dtype)dtype_traits<Tb>::af_type; \
array a = randu(num, ta); \
array b = randu(num, tb); \
array c = complex(a, b); \
array d = imag(c); \
Tb *h_b = b.host<Tb>(); \
Tc *h_d = d.host<Tc>(); \
for (int i = 0; i < num; i++) \
ASSERT_EQ(h_d[i], h_b[i]) << "at: " << i << endl; \
freeHost(h_b); \
freeHost(h_d); \
} \
TEST(ComplexTests, Test_##Ta##_##Tb##_Conj) { \
SUPPORTED_TYPE_CHECK(Ta); \
SUPPORTED_TYPE_CHECK(Tb); \
SUPPORTED_TYPE_CHECK(Tc); \
\
af_dtype ta = (af_dtype)dtype_traits<Ta>::af_type; \
af_dtype tb = (af_dtype)dtype_traits<Tb>::af_type; \
array a = randu(num, ta); \
array b = randu(num, tb); \
array c = complex(a, b); \
array d = conjg(c); \
CPLX(Tc) *h_c = c.host<CPLX(Tc)>(); \
CPLX(Tc) *h_d = d.host<CPLX(Tc)>(); \
for (int i = 0; i < num; i++) \
ASSERT_EQ(conj(h_c[i]), h_d[i]) << "at: " << i << endl; \
freeHost(h_c); \
freeHost(h_d); \
}
COMPLEX_TESTS(float, float, float)
COMPLEX_TESTS(double, double, double)
COMPLEX_TESTS(float, double, double)
TEST(Complex, SNIPPET_arith_func_complex) {
//! [ex_arith_func_complex]
//!
// Create a, a 2x3 array
array a = iota(dim4(2, 3)); // a = [0, 2, 4,
// 1, 3, 5]
// Create b from a single real array, returning zeros for the imaginary
// component
array b = complex(a); // b = [(0, 0), (2, 0), (4, 0),
// (1, 0), (3, 0), (5, 0)]
// Create c from two real arrays, one for the real component and one for the
// imaginary component
array c = complex(a, a); // c = [(0, 0), (2, 2), (4, 4),
// (1, 1), (3, 3), (5, 5)]
// Create d from a single real array for the real component and a single
// scalar for each imaginary component
array d = complex(a, 2); // d = [(0, 2), (2, 2), (4, 2),
// (1, 2), (3, 2), (5, 2)]
// Create e from a single scalar for each real component and a single real
// array for the imaginary component
array e = complex(2, a); // e = [(2, 0), (2, 2), (2, 4),
// (2, 1), (2, 3), (2, 5)]
//! [ex_arith_func_complex]
using std::complex;
using std::vector;
vector<float> ha(a.elements());
a.host(ha.data());
vector<cfloat> gold_b(a.elements());
for (int i = 0; i < a.elements(); i++) {
gold_b[i].real = ha[i];
gold_b[i].imag = 0;
}
ASSERT_VEC_ARRAY_EQ(gold_b, a.dims(), b);
vector<cfloat> gold_c(a.elements());
for (int i = 0; i < a.elements(); i++) {
gold_c[i].real = ha[i];
gold_c[i].imag = ha[i];
}
ASSERT_VEC_ARRAY_EQ(gold_c, a.dims(), c);
vector<cfloat> gold_d(a.elements());
for (int i = 0; i < a.elements(); i++) {
gold_d[i].real = ha[i];
gold_d[i].imag = 2;
}
ASSERT_VEC_ARRAY_EQ(gold_d, a.dims(), d);
vector<cfloat> gold_e(a.elements());
for (int i = 0; i < a.elements(); i++) {
gold_e[i].real = 2;
gold_e[i].imag = ha[i];
}
ASSERT_VEC_ARRAY_EQ(gold_e, a.dims(), e);
}
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